For more extensive quotations from the beginning of both texts, see Winternitz catalogue entry.
South Indian Sanskrit / Whish Manuscript Collection.
See ’A catalogue of South Indian Sanskrit manuscripts (especially those of the Whish Collection) belonging to the Royal Asiatic Society of Great Britain and Ireland’ by M. Winternitz, with an appendix by F. W. Thomas (London: RAS, 1902) p.209-210. Go to http://tinyurl.com/j3tkdwj for a digital copy of this catalogue. For the Amarakośodghāṭana, see also Aufrecht in Z. D. M. G. XXVIII (1874) pp.103-, and A. C. Burnell 'Classified index to the Sanskrit MSS. in the Palace at Tanjore (London, 1880), p.45; for the Campubhārata, cf. 'Mānavedacampu', 'Catalogue catalogorum' by Th. Aufrecht (Leipzig, 1891), p.451.
J. L. Whish, gift of manuscripts collected by his brother C. M. Whish, July 1836.